S
M
T
W
T
F
S
30
80°
59°
31
75°
60°
1
77°
59°
2
80°
55°
3
74°
50°
4
74°
53°
5
75°
56°
6
76°
58°
7
81°
58°
8
82°
57°
9
76°
55°
10
75°
56°
11
73°
47°
12
72°
48°
13
71°
47°
14
72°
45°
15
71°
46°
16
72°
44°
17
71°
45°
18
71°
43°
19
70°
42°
20
68°
41°
21
69°
42°
22
69°
43°
23
71°
45°
24
75°
50°
25
78°
52°
26
77°
51°
27
71°
48°
28
77°
50°
29
68°
39°
30
68°
47°
1
66°
50°
2
75°
37°
3
76°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in River Raisin
River Raisin's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 37° and 60°. The average high for September is 74° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in River Raisin. See also: October | November | December.
